Real Vim ninjas count every keystroke - do you?

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$ gem install vimgolf
$ vimgolf setup
$ vimgolf put 9v006233d72d000000000219

Fix the shell script!

Fix the shell script with the fewest keystrokes!

Start file
#!/bin/bash
a
= 5
b
= 10
sum
= $a + $b
echo $sum

mul
= $a * $b
echo $mul
End file
#!/bin/bash
a
=5
b
=10
sum
=$((a + b))
echo $sum

mul
=$((a * b))
echo $mul

View Diff

2,4c2,4
< a = 5
< b = 10
< sum = $a + $b
---
> a=5
> b=10
> sum=$((a + b))
7c7
< mul = $a * $b
---
> mul=$((a * b))

Solutions by @bornintheflames:

Unlock 8 remaining solutions by signing in and submitting your own entry
Created by: @u_hossein

607 active golfers, 2606 entries

Solutions by @bornintheflames:
27
#118 - Remus Dalrymple / @bornintheflames

01/01/2024 at 09:05AM

28
#>162 - Remus Dalrymple / @bornintheflames

01/01/2024 at 09:04AM

29
#>216 - Remus Dalrymple / @bornintheflames

01/01/2024 at 09:03AM

30
#>241 - Remus Dalrymple / @bornintheflames

01/01/2024 at 09:01AM

31
#>272 - Remus Dalrymple / @bornintheflames

01/01/2024 at 09:01AM

33
#>298 - Remus Dalrymple / @bornintheflames

01/01/2024 at 08:59AM

40
#>409 - Remus Dalrymple / @bornintheflames

01/01/2024 at 08:57AM

45
#>465 - Remus Dalrymple / @bornintheflames

01/01/2024 at 08:55AM